× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: finding more q. than answers
Posted to Emissions Forum on 3/15/2021

It is not going to ruin the new converter. What they are saying is if the one hour run time is not enabled then you will get a false P0420/P0430 after the new converter is installed. GM says if this happens then you need to perform a specific drive cycle.

If... Login to read more.